Answer:
-213
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Explanation:
Step 1: Define
3|x + y|² - (xy)²
x = 3
y = -5
Step 2: Evaluate
- Substitute: 3|3 - 5|² - (3(-5))²
- Multiply: 3|-2|² - (-15)²
- Exponents: 3|-2|² - 225
- Absolute Value: 3(2)² - 225
- Exponents: 3(4) - 225
- Multiply: 12 - 225
- Subtract: -213